Biogas has crossed a new threshold in the European Union, as EurObserv’ER puts primary energy output in 2016 at more than 16 million tonnes of oil equivalent. Methanization plants purpose-designed for energy recovery, such as farm biogas, co-digestion biogas and industrial biogas now produce almost three-quarters of the total biogas output leaving landfill sites and wastewater sludge treatment plants far behind.